Hydraulic drive powered endless track drive motorcycle

ABSTRACT

The hydraulic drive powered endless track drive motorcycle is a track cycle comprising a front track assembly, a rear track assembly, a power plant, and a frame. The front and rear track assemblies use an endless track circulating around a driven sprocket, bogie sprockets, and idlers to distribute the weight of the vehicle and provide greater traction than a tire would provide. The track assemblies are driven by hydraulic motors that receive pressurized hydraulic fluid from a power plant mounted to the frame. The power plant comprises an internal combustion engine driving a hydraulic pump and a hydraulic expansion tank. A seat is mounted to the top of the frame. The front track assembly is steerable using handlebars and a suspension system pivotably mounted to the front of the frame.

CROSS REFERENCES TO RELATED APPLICATIONS

Not Applicable

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH

Not Applicable

REFERENCE TO APPENDIX

Not Applicable

BACKGROUND OF THE INVENTION Field of the Invention

The present invention relates to the fields of motorcycles and off-roadvehicles, more specifically, a hydraulic drive powered endless trackdrive motorcycle.

SUMMARY OF INVENTION

The hydraulic drive powered endless track drive motorcycle is a trackcycle comprising a front track assembly, a rear track assembly, a powerplant, and a frame. The front and rear track assemblies use an endlesstrack circulating around a driven sprocket, bogie sprockets, and idlersto distribute the weight of the vehicle and provide greater tractionthan a tire would provide. The track assemblies are driven by hydraulicmotors that receive pressurized hydraulic fluid from a power plantmounted to the frame. The power plant comprises an internal combustionengine driving a hydraulic pump and a hydraulic expansion tank. A seatis mounted to the top of the frame. The front track assembly issteerable using handlebars and a suspension system pivotably mounted tothe front of the frame.

An object of the invention is to provide a vehicle suitable for use onoff-road trails.

Another object of the invention is to provide front and rear endlesstrack drives.

A further object of the invention is to power the endless track driveusing hydraulic motors.

Yet another object of the invention is to provide a power plant for thevehicle that uses and internal combustion engine to drive a hydraulicpump.

These together with additional objects, features and advantages of thehydraulic drive powered endless track drive motorcycle will be readilyapparent to those of ordinary skill in the art upon reading thefollowing detailed description of the presently preferred, butnonetheless illustrative, embodiments when taken in conjunction with theaccompanying drawings.

In this respect, before explaining the current embodiments of thehydraulic drive powered endless track drive motorcycle in detail, it isto be understood that the hydraulic drive powered endless track drivemotorcycle is not limited in its applications to the details ofconstruction and arrangements of the components set forth in thefollowing description or illustration. Those skilled in the art willappreciate that the concept of this disclosure may be readily utilizedas a basis for the design of other structures, methods, and systems forcarrying out the several purposes of the hydraulic drive powered endlesstrack drive motorcycle.

It is therefore important that the claims be regarded as including suchequivalent construction insofar as they do not depart from the spiritand scope of the hydraulic drive powered endless track drive motorcycle.It is also to be understood that the phraseology and terminologyemployed herein are for purposes of description and should not beregarded as limiting.

BRIEF DESCRIPTION OF DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention are incorporated in and constitute a partof this specification, illustrate an embodiment of the invention andtogether with the description serve to explain the principles of theinvention. They are meant to be exemplary illustrations provided toenable persons skilled in the art to practice the disclosure and are notintended to limit the scope of the appended claims.

FIG. 1 is a side view of an embodiment of the disclosure.

FIG. 2 is a top view of an embodiment of the disclosure.

FIG. 3 is a rear view of an embodiment of the disclosure.

FIG. 4 is a front view of an embodiment of the disclosure.

FIG. 5 is a block diagram of an embodiment of the disclosureillustrating major components of the power plant.

DETAILED DESCRIPTION OF THE EMBODIMENT

The following detailed description is merely exemplary in nature and isnot intended to limit the described embodiments of the application anduses of the described embodiments. As used herein, the word “exemplary”or “illustrative” means “serving as an example, instance, orillustration.” Any implementation described herein as “exemplary” or“illustrative” is not necessarily to be construed as preferred oradvantageous over other implementations. All of the implementationsdescribed below are exemplary implementations provided to enable personsskilled in the art to practice the disclosure and are not intended tolimit the scope of the appended claims. Furthermore, there is nointention to be bound by any expressed or implied theory presented inthe preceding technical field, background, brief summary or thefollowing detailed description. As used herein, the word “or” isintended to be inclusive.

Detailed reference will now be made to a first potential embodiment ofthe disclosure, which is illustrated in FIGS. 1 through 5.

The hydraulic drive powered endless track drive motorcycle 100(hereinafter invention) comprises a power plant, a front track assembly400, a rear track assembly 500, and a frame. The invention 100 is atrack cycle powered by a pair of hydraulic motors.

The power plant comprises an internal combustion engine 210, a hydraulicpump 220, a hydraulic expansion tank 230, a fuel tank 285, and a battery250. The power plant may pressurize a hydraulic fluid. The hydraulicfluid may be used to drive the pair of hydraulic motors. The power plantmay be located within a frame core. A filter 778 may be positioned inline between the hydraulic pump 220 and the hydraulic expansion tank230.

The hydraulic pump 220 may include a forward/reverse actuator 777. Theforward/reverse actuator 777 controls the direction of the hydraulicpump 220 in order to determine direction of travel of the invention 100.

The internal combustion engine 210 may burn fuel within one or morecylinders of the internal combustion engine 210 to cause reciprocatingmotion of one or more pistons. The internal combustion engine 210 mayutilize a crankshaft to convert the reciprocating motion of the one ormore pistons into rotational motion of a drive shaft. The drive shaftmay be coupled to the hydraulic pump 220 such that operation of theinternal combustion engine 210 may cause operation of the hydraulic pump220.

The hydraulic pump 220 may cause circulation of the hydraulic fluid.Specifically, the hydraulic pump 220 may receive the hydraulic fluidhaving a first pressure at an intake of the hydraulic pump 220, maypressurize the hydraulic fluid, and may discharge the hydraulic fluidhaving a second pressure at an outlet of the hydraulic pump 220. Thesecond pressure may be a higher pressure than the first pressure. Thehydraulic fluid may travel from the outlet of the hydraulic pump 220through hydraulic lines 240 to the hydraulic expansion tank 230 and thepair of hydraulic motors, and then back to the intake of the hydraulicpump 220. In the process of flowing through the pair of hydraulic motorsthe pressure of the hydraulic fluid may drop from the first pressure tothe second pressure. In some embodiments, the hydraulic pump 220 may bea swashplate hydraulic pump.

The hydraulic expansion tank 230 may be a pressure regulating tank.Specifically, the hydraulic expansion tank 230 may be a tank comprisinga hydraulic fluid portion and an air portion. The hydraulic fluidportion may directly or indirectly contact the air portion. If thepressure of the hydraulic fluid increases suddenly, air in the airportion may compress to absorb the pressure impulse. As a non-limitingexample, the pressure impulse may be the result of foreign objectsinterfering with operation of the front track assembly 400 or the reartrack assembly 500.

The fuel tank 285 may be a storage container for the fuel for theinternal combustion engine 210.

The battery 250 may comprise one or more energy-storage devices. Thebattery 250 may be a source of electrical energy to operate electricalsubsystems. The battery 250 may be replaceable or rechargeable.

The front track assembly 400 propels the invention 100 by moving a fronttrack 440 around the periphery of the front track assembly 400. Thefront track assembly 400 may be located at the front of the invention100 between a left front track mount 360 and a right front track mount365. The left front track mount 360 and the right front track mount 365may couple to a front suspension bracket 370.

The front track 440 may be a continuous loop of flexible materialsurrounding the front track assembly 400. The shape of the front track440 when viewed from a side may be triangular or trapezoidal. The bottomsurface of the front track 440 may be in contact with the terrain. Thefront of the bottom surface of the front track 440 may be elevated abovethe terrain to allow the front track 440 to climb over obstacles. Theoutside surface of the front track 440 may be covered with a pluralityof lateral ridges or other relief to increase traction with the terrain.The inside surface of the front track 440 may be covered with arepeating pattern of lateral ridges for engaging with a front drivensprocket 410, a first front bogie sprocket 420, and a second front bogiesprocket 425. The front track 440 may travel around a path defined bythe front driven sprocket 410, the first front bogie sprocket 420, thesecond front bogie sprocket 425, and one or more front idler wheels 430.The front driven sprocket 410 may be a gear or sprocket driven by afront hydraulic motor 580. The front driven sprocket 410 may beresponsible for moving the front track 440. The first front bogiesprocket 420 and the second front bogie sprocket 425 may be bogie wheelsor bogie sprockets which are not powered but which determine the sizeand shape of the front track 440. The first front bogie sprocket 420 andthe second front bogie sprocket 425 may support the front track 440 atcorners of the front track assembly 400 where the front track 440changes direction of travel. A pattern of teeth on the outsidecircumference of the front driven sprocket 410, the first front bogiesprocket 420, and the second front bogie sprocket 425 may match thespacing and shape of the plurality of lateral ridges on the insidesurface of the front track 440. The one or more front idler wheels 430may be wheels or sprockets that are now powered but which guide thefront track 440 and may increase tension on the front track 440.

The front hydraulic motor 580 may cause rotation of a front motor drivegear 585 when the front hydraulic motor 580 is activated. The frontmotor drive gear 585 may drive the front driven sprocket 410 via a frontdrive loop 445. The front hydraulic motor 580, the front driven sprocket410, the first front bogie sprocket 420, the second front bogie sprocket425, and the one or more front idler wheels 430 may be directly orindirectly mounted on the left front track mount 360, the right fronttrack mount 365, or both. The front hydraulic motor 580 may be activatedby the power plant via the hydraulic lines 240. The rotational directionof the front hydraulic motor 580 may be controlled by the direction offluid flow through the hydraulic lines 240.

The rear track assembly 500 propels the invention 100 by moving a reartrack 540 around the periphery of the rear track assembly 500. The reartrack assembly 500 may be located at the rear of the invention 100between a left rear track mount 340 and a right rear track mount 345.The front of the left rear track mount 340 and the front of the rightrear track mount 345 may be pivotably coupled to one or more reardowntubes 315. The left rear track mount 340 and the right rear trackmount 345 may further couple to the frame core via a rear suspensionarmature 350. The rear suspension armature 350 may comprise a rear shockabsorber to smooth the ride over non-level terrain.

The rear track 540 may be a continuous loop of flexible materialsurrounding the rear track assembly 500. The shape of the rear track 540when viewed from a side may be triangular or trapezoidal. The bottomsurface of the rear track 540 may be in contact with the terrain. Thefront of the bottom surface of the rear track 540 may be elevated abovethe terrain to allow the rear track 540 to climb over obstacles. Theoutside surface of the rear track 540 may be covered with a plurality oflateral ridges or other relief to increase traction with the terrain.The inside surface of the rear track 540 may be covered with a repeatingpattern of lateral ridges for engaging with a rear driven sprocket 510,a first rear bogie sprocket 520, and a second rear bogie sprocket 525.The rear track 540 may travel around a path defined by the rear drivensprocket 510, the first rear bogie sprocket 520, the second rear bogiesprocket 525, and one or more rear idler wheels 530. The rear drivensprocket 510 may be a gear or sprocket driven by a rear hydraulic motor590. The rear driven sprocket 510 may be responsible for moving the reartrack 540. The first rear bogie sprocket 520 and the second rear bogiesprocket 525 may be bogie wheels or bogie sprockets which are notpowered but which determine the size and shape of the rear track 540.The first rear bogie sprocket 520 and the second rear bogie sprocket 525may support the rear track 540 at corners of the rear track assembly 500where the rear track 540 changes direction of travel. A pattern of teethon the outside circumference of the rear driven sprocket 510, the firstrear bogie sprocket 520, and the second rear bogie sprocket 525 maymatch the spacing and shape of the plurality of lateral ridges on theinside surface of the rear track 540. The one or more rear idler wheels530 may be wheels or sprockets that are not powered but which guide therear track 540 and may increase tension on the rear track 540.

The rear hydraulic motor 590 may cause rotation of a rear motor drivegear 595 when the rear hydraulic motor 590 is activated. The rear motordrive gear 595 may drive the rear driven sprocket 510 via a rear driveloop 545. The rear hydraulic motor 590, the rear driven sprocket 510,the first rear bogie sprocket 520, the second rear bogie sprocket 525,and the one or more rear idler wheels 530 may be directly or indirectlymounted on the left rear track mount 340, the right rear track mount345, or both. The rear hydraulic motor 590 may be activated by the powerplant via the hydraulic lines 240. The rotational direction of the rearhydraulic motor 590 may be controlled by the direction of fluid flowthrough the hydraulic lines 240.

The frame comprises one or more backbone tubes 305, one or more frontdowntubes 310, the one or more rear downtubes 315, one or more bottomrails 330, a seat 380, the rear suspension armature 350, a neck 320, asteering pivot tube 325, a handle bars 335, and the front suspensionbracket 370. The frame provides structure and support for the powerplant, the rear track assembly 500, the front track assembly 400. Theframe provides seating for a rider and provides the ability to steer theinvention 100.

The one or more backbone tubes 305, the one or more front downtubes 310,the one or more rear downtubes 315, and the one or more bottom rails 330comprise the frame core. The one or more backbone tubes 305 may be thetopmost tubes of the frame and may be oriented to run from front torear. The seat 380 may be coupled to the top of the one or more backbonetubes 305. The one or more front downtubes 310 may be verticallyoriented to run from top to bottom. The top of the one or more frontdowntubes 310 may couple to the front of the one or more backbone tubes305. The one or more rear downtubes 315 may be vertically oriented torun from top to bottom. The top of the one or more rear downtubes 315may couple to the rear of the one or more backbone tubes 305. The one ormore bottom rails 330 may be the lowest tubes of the frame and may beoriented to run from front to rear. The front of the one or more bottomrails 330 may be coupled to the bottom of the one or more frontdowntubes 310. The rear of the one or more bottom rails 330 may becoupled to the bottom of the one or more rear downtubes 315. The seat380 may be a padded surface on the top of the invention 100 adapted forthe rider to sit upon.

The neck 320 may be a tube located at the front of the frame core. Theneck 320 may be oriented vertically or may be inclined from lower frontto upper rear. The steering pivot tube 325 may be an armature thatpasses through the neck 320 and pivots within the neck 320 for steeringpurposes. The handle bars 335 may be an armature that couples to the topof the steering pivot tube 325 and extends laterally from left to right.The handle bars 335 may be adapted for the rider to hold and steer withwhile riding. A throttle 280 and brake controls may be coupled to thehandle bars 335. The throttle 280 may control the rotational speed ofthe front hydraulic motor 580 and the rear hydraulic motor 590. Thefront suspension bracket 370 may be one or more lateral armatures thatare coupled to the bottom of the steering pivot tube 325. The left fronttrack mount 360 and the right front track mount 365 may be coupled tothe front suspension bracket 370. Rotating the handle bars 335 may causethe steering pivot tube 325 to pivot within the neck 320 and causerotation on the front suspension bracket 370. Rotation of the frontsuspension bracket 370 may change the direction that the left fronttrack mount 360 and the right front track mount 365 point, thus changingthe direction of the front track assembly 400 and thereby changingdirection of travel of the invention 100.

A rear fender 385 may be a protective surface used to deflect water andmud through into the air by the rear track assembly 500. The rear fender385 may be coupled to the frame core and may be above the rear trackassembly 500 and/or between the rear track assembly 500 and the seat380.

Unless otherwise stated, the words “up”, “down”, “top”, “bottom”,“upper”, and “lower” should be interpreted within a gravitationalframework. “Down” is the direction that gravity would pull an object.“Up” is the opposite of “down”. “Bottom” is the part of an object thatis down farther than any other part of the object. “Top” is the part ofan object that is up farther than any other part of the object. “Upper”refers to top and “lower” refers to the bottom. As a non-limitingexample, the upper end of a vertical shaft is the top end of thevertical shaft.

Throughout this document the terms “battery”, “battery pack”, and“batteries” may be used interchangeably to refer to one or more wet ordry cells or batteries of cells in which chemical energy is convertedinto electricity and used as a source of DC power. References torecharging or replacing batteries may refer to recharging or replacingindividual cells, individual batteries of cells, or a package ofmultiple battery cells as is appropriate for any given batterytechnology that may be used. The battery may require electrical contactswhich may not be illustrated in the figures.

As used herein, “bogie wheel” refers to an unpowered wheel that carriesat least a portion of the weight of a vehicle. A bogie sprocket may besimilar to a bogie wheel except for having a toothed circumference forthe purpose of engaging with a track or chain.

As used in this disclosure, a “brake” is a device that is used to slowor stop the motion of a machine or a vehicle.

In this disclosure, “compress” refers to forcing into a smaller space.

As used herein, the words “couple”, “couples”, “coupled” or “coupling”,refer to connecting, either directly or indirectly, and does notnecessarily imply a mechanical connection.

As used herein, “expansion tank” refers to a vessel that compensates forincreased pressure within a closed system. As a non-limiting example,the closed system may be a hydraulic system. The expansion tank providesan interface between air and the fluid in the closed system. Theinterface may be a direct contact between the air and the fluid or maycomprise a bladder or diaphragm separating the air and the fluid. Aspressure increases in the system, the compressible air may be forcedinto a smaller volume to compensate for the increasing pressure and thusavoid damage to the closed system.

As used in this disclosure, “flexible” refers to an object or materialwhich will deform when a force is applied to it, which will not returnto its original shape when the deforming force is removed, and which maynot retain the deformed shape caused by the deforming force.

As used herein, “front” indicates the side of an object that is closestto a forward direction of travel under normal use of the object or theside or part of an object that normally presents itself to view or thatis normally used first. “Rear” or “back” refers to the side that isopposite the front.

As used in this disclosure, a “gear” is a toothed wheel, cylinder, orother toothed mechanical element that is used to transmit motion, achange of speed, or a change of direction to second toothed wheel,cylinder, or other toothed mechanical element.

As used in this disclosure, a “handle” is an object by which a tool,object, or door is held or manipulated with the hand.

As used herein, “idler wheel” refers to an unpowered wheel that guidesand/or tensions a belt or track. An idler sprocket may be similar to anidler wheel except for having a toothed circumference for engaging witha track or chain.

As used in this disclosure, an “internal combustion engine” is an enginepowered by burning fuel within the engine.

As used in this disclosure, the word “lateral” refers to the sides of anobject or movement towards a side. Lateral directions are generallyperpendicular to longitudinal directions. “Laterally” refers to movementin a lateral direction.

As used in this disclosure, a “motor” refers to a device that transformsenergy from an external power source into mechanical energy.

As used herein, the word “pivot” is intended to include any mechanicalarrangement that allows for rotational motion. Non-limiting examples ofpivots may include hinges, holes, posts, dowels, pins, points, rods,shafts, balls, and sockets, either individually or in combination.

As used in this disclosure, a “pump” is a mechanical orelectromechanical device that uses suction or pressure to raise or movefluids, compress fluids, or force a fluid into an inflatable object. Asnon-limiting examples, fluids may include both liquids, such as water,and gases, such as air.

As used in this disclosure, the term “shaft” is used to describe a rigidcylinder that is often used as the handle of a tool or implement or asthe center of rotating machinery or motors. The definition of shaftexplicitly includes solid shafts or shafts that comprise a hollowpassage through the shaft along the center axis of the shaft cylinder,whether the shaft has one or more sealed ends or not.

As used herein, “swashplate” refers to an inclined disk revolving on ashaft such that the outer edges of the disk oscillate as the shaftturns. The inclined disk may, either directly or indirectly, causingreciprocating motion of one or more arms located at the outer edge ofthe disk. In a swashplate pump, the reciprocating motion of the arms maybe used to pump a fluid.

As used herein, a “track drive” (also known as a continuous track,endless track, caterpillar track, or tank tread) refers to a vehiclepropulsion system in which a continuous band of treads or track platesis driven by two or more wheels or sprockets. The band may be made frommodular steel plates or from flexible material that may be reinforcedwith metal wires. As a non-limiting example, the band may be made fromsynthetic rubber reinforced with steel wires. The track drive may offerthe advantages or spreading the weight of the vehicle over a largersurface area and providing improved traction on soft surfaces.

With respect to the above description, it is to be realized that theoptimum dimensional relationship for the various components of theinvention described above and in FIGS. 1 through 5, include variationsin size, materials, shape, form, function, and manner of operation,assembly and use, are deemed readily apparent and obvious to one skilledin the art, and all equivalent relationships to those illustrated in thedrawings and described in the specification are intended to beencompassed by the invention.

It shall be noted that those skilled in the art will readily recognizenumerous adaptations and modifications which can be made to the variousembodiments of the present invention which will result in an improvedinvention, yet all of which will fall within the spirit and scope of thepresent invention as defined in the following claims. Accordingly, theinvention is to be limited only by the scope of the following claims andtheir equivalents.

The inventor claims:
 1. A hydraulic drive powered endless track drivemotorcycle comprising: a power plant, a front track assembly, a reartrack assembly, and a frame; wherein the hydraulic drive powered endlesstrack drive motorcycle is powered by a pair of hydraulic motors; whereinthe power plant comprises an internal combustion engine, a hydraulicpump, a hydraulic expansion tank, a fuel tank, and a battery; whereinthe power plant pressurizes a hydraulic fluid; wherein the hydraulicfluid drives the pair of hydraulic motors; wherein the power plant islocated within a frame core; wherein the internal combustion engineburns fuel within one or more cylinders of the internal combustionengine to cause reciprocating motion of one or more pistons; wherein theinternal combustion engine utilizes a crankshaft to convert thereciprocating motion of the one or more pistons into rotational motionof a drive shaft; wherein the drive shaft is coupled to the hydraulicpump such that operation of the internal combustion engine causesoperation of the hydraulic pump; wherein the hydraulic pump causescirculation of the hydraulic fluid; wherein the hydraulic pump receivesthe hydraulic fluid having a first pressure at an intake of thehydraulic pump, pressurizes the hydraulic fluid, and discharges thehydraulic fluid having a second pressure at an outlet of the hydraulicpump; wherein the second pressure is a higher pressure than the firstpressure; wherein the hydraulic fluid travels from the outlet of thehydraulic pump through hydraulic lines to the hydraulic expansion tankand the pair of hydraulic motors, and then back to the intake of thehydraulic pump; wherein in the process of flowing through the pair ofhydraulic motors the pressure of the hydraulic fluid drops from thefirst pressure to the second pressure.
 2. The hydraulic drive poweredendless track drive motorcycle according to claim 1 wherein thehydraulic pump is a swashplate hydraulic pump; wherein the hydraulicpump includes a forward/reverse actuator; wherein the forward/reverseactuator controls the direction of the hydraulic pump in order todetermine direction of travel of the hydraulic drive powered endlesstrack drive motorcycle.
 3. The hydraulic drive powered endless trackdrive motorcycle according to claim 1 wherein the hydraulic expansiontank is a pressure regulating tank; wherein the hydraulic expansion tankis a tank comprising a hydraulic fluid portion and an air portion;wherein the hydraulic fluid portion directly or indirectly contacts theair portion; wherein if the pressure of the hydraulic fluid increases,air in the air portion compresses to absorb the pressure impulse.
 4. Thehydraulic drive powered endless track drive motorcycle according toclaim 3 wherein the fuel tank is a storage container for the fuel forthe internal combustion engine.
 5. The hydraulic drive powered endlesstrack drive motorcycle according to claim 4 wherein the batterycomprises one or more energy-storage devices; wherein the battery is asource of electrical energy to operate electrical subsystems; whereinthe battery is replaceable or rechargeable.
 6. The hydraulic drivepowered endless track drive motorcycle according to claim 5 wherein thefront track assembly propels the hydraulic drive powered endless trackdrive motorcycle by moving a front track around the periphery of thefront track assembly; wherein the front track assembly is located at thefront of the hydraulic drive powered endless track drive motorcyclebetween a left front track mount and a right front track mount; whereinthe left front track mount and the right front track mount couple to afront suspension bracket.
 7. The hydraulic drive powered endless trackdrive motorcycle according to claim 6 wherein the front track is acontinuous loop of flexible material surrounding the front trackassembly; wherein the shape of the front track when viewed from a sideis triangular or trapezoidal; wherein a bottom surface of the fronttrack is in contact with the terrain; wherein a front of the bottomsurface of the front track is elevated above the terrain to allow thefront track to climb over obstacles; wherein an outside surface of thefront track is covered with a plurality of lateral ridges to increasetraction with the terrain; wherein an inside surface of the front trackis covered with a repeating pattern of lateral ridges for engaging witha front driven sprocket, a first front bogie sprocket, and a secondfront bogie sprocket.
 8. The hydraulic drive powered endless track drivemotorcycle according to claim 7 wherein the front track travels around apath defined by the front driven sprocket, the first front bogiesprocket, the second front bogie sprocket, and one or more front idlerwheels; wherein the front driven sprocket is driven by a front hydraulicmotor; wherein the front driven sprocket moves the front track; whereinthe first front bogie sprocket and the second front bogie sprocket arenot powered but which determine the size and shape of the front track;wherein the first front bogie sprocket and the second front bogiesprocket support the front track at corners of the front track assemblywhere the front track changes direction of travel; wherein a pattern ofteeth on the outside circumference of the front driven sprocket, thefirst front bogie sprocket, and the second front bogie sprocket matchthe spacing and shape of the plurality of lateral ridges on the insidesurface of the front track; wherein the one or more front idler wheelsare not powered but which guide the front track and/or increase tensionon the front track.
 9. The hydraulic drive powered endless track drivemotorcycle according to claim 8 wherein the front hydraulic motor causesrotation of a front motor drive gear when the front hydraulic motor isactivated; wherein the front motor drive gear drives the front drivensprocket via a front drive loop; wherein the front hydraulic motor, thefront driven sprocket, the first front bogie sprocket, the second frontbogie sprocket, and the one or more front idler wheels are directly orindirectly mounted on the left front track mount, the right front trackmount, or both; wherein the front hydraulic motor is activated by thepower plant via the hydraulic lines; wherein the rotational direction ofthe front hydraulic motor is controlled by the direction of fluid flowthrough the hydraulic lines.
 10. The hydraulic drive powered endlesstrack drive motorcycle according to claim 9 wherein the rear trackassembly propels the hydraulic drive powered endless track drivemotorcycle by moving a rear track around the periphery of the rear trackassembly; wherein the rear track assembly is located at the rear of thehydraulic drive powered endless track drive motorcycle between a leftrear track mount and a right rear track mount; wherein a front of theleft rear track mount and a front of the right rear track mount arepivotably coupled to one or more rear downtubes; wherein the left reartrack mount and the right rear track mount couple to the frame core viaa rear suspension armature; wherein the rear suspension armaturecomprises a rear shock absorber to smooth the ride over non-levelterrain.
 11. The hydraulic drive powered endless track drive motorcycleaccording to claim 10 wherein the rear track is a continuous loop offlexible material surrounding the rear track assembly; wherein the shapeof the rear track when viewed from a side is triangular or trapezoidal;wherein a bottom surface of the rear track is in contact with theterrain; wherein a front of the bottom surface of the rear track iselevated above the terrain to allow the rear track to climb overobstacles; wherein an outside surface of the rear track is covered witha plurality of lateral ridges to increase traction with the terrain;wherein the inside surface of the rear track is covered with a repeatingpattern of lateral ridges for engaging with a rear driven sprocket, afirst rear bogie sprocket, and a second rear bogie sprocket.
 12. Thehydraulic drive powered endless track drive motorcycle according toclaim 11 wherein the rear track travels around a path defined by therear driven sprocket, the first rear bogie sprocket, the second rearbogie sprocket, and one or more rear idler wheels; wherein the reardriven sprocket is driven by a rear hydraulic motor; wherein the reardriven sprocket moves the rear track; wherein the first rear bogiesprocket and the second rear bogie sprocket are not powered but whichdetermine the size and shape of the rear track; wherein the first rearbogie sprocket and the second rear bogie sprocket support the rear trackat corners of the rear track assembly where the rear track changesdirection of travel; wherein a pattern of teeth on an outsidecircumference of the rear driven sprocket, the first rear bogiesprocket, and the second rear bogie sprocket match the spacing and shapeof the plurality of lateral ridges on an inside surface of the reartrack; wherein the one or more rear idler wheels are not powered butwhich guide the rear track and/or increase tension on the rear track.13. The hydraulic drive powered endless track drive motorcycle accordingto claim 12 wherein the rear hydraulic motor causes rotation of a rearmotor drive gear when the rear hydraulic motor is activated; wherein therear motor drive gear drives the rear driven sprocket via a rear driveloop; wherein the rear hydraulic motor, the rear driven sprocket, thefirst rear bogie sprocket, the second rear bogie sprocket, and the oneor more rear idler wheels are directly or indirectly mounted on the leftrear track mount, the right rear track mount, or both; wherein the rearhydraulic motor is activated by the power plant via the hydraulic lines;wherein the rotational direction of the rear hydraulic motor iscontrolled by the direction of fluid flow through the hydraulic lines.14. The hydraulic drive powered endless track drive motorcycle accordingto claim 13 wherein the frame comprises one or more backbone tubes, oneor more front downtubes, the one or more rear downtubes, one or morebottom rails, a seat, the rear suspension armature, a neck, a steeringpivot tube, handle bars, and the front suspension bracket; wherein theframe provides structure and support for the power plant, the rear trackassembly, the front track assembly; wherein the frame provides seatingfor a rider and provides the ability to steer the hydraulic drivepowered endless track drive motorcycle.
 15. The hydraulic drive poweredendless track drive motorcycle according to claim 14 wherein the one ormore backbone tubes, the one or more front downtubes, the one or morerear downtubes, and the one or more bottom rails comprise the framecore; wherein the one or more backbone tubes are topmost tubes of theframe and are oriented to run from front to rear; wherein the seat iscoupled to a top of the one or more backbone tubes; wherein the one ormore front downtubes are vertically oriented to run from top to bottom;wherein the top of the one or more front downtubes couples to the frontof the one or more backbone tubes; wherein the one or more reardowntubes are vertically oriented to run from top to bottom; wherein thetop of the one or more rear downtubes couples to the rear of the one ormore backbone tubes; wherein the one or more bottom rails are lowesttubes of the frame and are oriented to run from front to rear; whereinthe front of the one or more bottom rails are coupled to the bottom ofthe one or more front downtubes; wherein the rear of the one or morebottom rails are coupled to the bottom of the one or more reardowntubes; wherein the seat is a padded surface on a top of thehydraulic drive powered endless track drive motorcycle adapted for therider to sit upon.
 16. The hydraulic drive powered endless track drivemotorcycle according to claim 15 wherein the neck is a tube located at afront of the frame core; wherein the neck is oriented vertically or isinclined from lower front to upper rear; wherein the steering pivot tubeis an armature that passes through the neck and pivots within the neckfor steering purposes; wherein the handle bars are armatures that coupleto a top of the steering pivot tube and extend laterally from left toright; wherein the handle bars are adapted for the rider to hold andsteer with while riding; wherein a throttle and brake controls arecoupled to the handle bars; wherein the throttle controls the rotationalspeed of the front hydraulic motor and the rear hydraulic motor; whereinthe front suspension bracket comprises one or more lateral armaturesthat are coupled to a bottom of the steering pivot tube; wherein theleft front track mount and the right front track mount are coupled tothe front suspension bracket; wherein rotating the handle bars causesthe steering pivot tube to pivot within the neck and cause rotation onthe front suspension bracket; wherein rotation of the front suspensionbracket changes the direction that the left front track mount and theright front track mount point, thus changing the direction of the fronttrack assembly and thereby changing direction of travel of the hydraulicdrive powered endless track drive motorcycle.